Q: What are the prime factors of the number 243,301,122?

 A: 2, 3, 37, 101, 3617

Why are those the prime factors of the number 243,301,122?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 243,301,122

243,301,122
Factor Arrows
2121,650,561
Factor Arrows
340,550,187
Factor Arrows
313,516,729
Factor Arrows
37365,317
Factor Arrows
1013,617

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 37, 101, 3617

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 37 x 101 x 3,617 = 243,301,122

This can also be written as 21 x 32 x 371 x 1011 x 3,6171 = 243,301,122

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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